Felicity Huffman and Doug Savant Felicity Huffman and Doug Savant

Will one of Wisteria Lane's most beloved couples be able to reconcile before time runs out? For seven seasons of Desperate Housewives, Lynette (Felicity Huffman) and Tom Scavo (Doug Savant) were one of the show's few stable relationships. While Gaby and Carlos, and Susan and Mike were busy breaking up and getting back together, and Bree had her hands full bedding half the block, the Scavos always seemed to have it together.

But after separating at the beginning of the season, things aren't looking good. "We're worried," Huffman tells TVGuide.com. "We just keep getting farther and farther apart."

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That gap is only going to widen on this Sunday's episode, airing at 9/8c on ABC, when Lynette starts dating again. Tom already has a girlfriend, Jane (Andrea Parker), but that doesn't mean he's going to take the news well. "While I was away from the set, James [Denton] took a picture of Felicity in bed with another actor and sent it to me and I said, 'That's it. I want a divorce,'" Savant says with a laugh. "I don't anticipate Tom reacting any better than I already did, which is poorly."

Savant is hardly the only one having a tough time accepting the couple's break-up this season. "I used to get very good reactions on the street. People liked Tom and thought he was funny. And now I hear 'You're stupid,'" Savant says. ("Do they really say you're stupid?" Huffman asks. "Was it me?" At least they still do the old married couple banter off-screen.)

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Huffman anticipates more tough feedback now that Lynette is playing the field again, and she empathizes with fans. "People are shocked. People don't like it. I read a lot of stuff about people hating Jane, but I've been dating so I'm sure stuff is going to come out about that," Huffman says. "People are attached, as are we, to the marriage and they want them to get back together."

Considering the many hardships their marriage has endured over the years — the discovery of a long-lost love child, cancer, miscarriage, money troubles, the grocery store shoot-out, the tornado and the plane crash — how much will it take to keep them apart for good? "They're meant to be together. They have a deep and abiding love," Huffman says. "Like a lot of marriages, they've let the bad stuff overtake the good stuff."

A happy ending for Lynette and Tom is the only way Savant sees fit to say goodbye to Desperate Housewives.  "I so closely relate this entire experience to our personal friendship and working relationship because she's my wife on the show. She's the reason I exist on the show," Savant says. "I can't imagine the show coming to an end and us not being together."